Machine foe turning spools



(No Model.) 4 SheetsSheet 1.

' B. HUBBARD.

MAOHINE FOR TURNING SPOOLS.

Patented June 19, 1894.

wwwwwwwwwwww c.

(No Model.) 4 Sheets-Sheet 2.

, E HUBBARD MACHINE FOE TURNING SPOOLS.

Patented June 19,1894.

72 ve72zf07".

4 Sheets-Shet 3.

(No Model.)

B. HUBBARD. MACHINE FOR TURNING sPooLs.

Patented June 19, 1894.

M W m we ccMPANv.

(No Model.) 4 Sheets-Sheet 4.

E.HUBBARDQ MACHINE FOR TURNING SPOOLS- No. 521,468. PatentedJune I9, 1894.

firzgkelsgsvefi Z72 awe-tor WW Mm UNITED STATES PATENT FFICE.

EBER HUBBARD, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE \VILLIMANTIC LINEN COMPANY, OF HARTFORD, CONNECTICUT.

MAC HINE FOR TURNING'SPOOLS.

SPECIFICATION forming part of Letters Patent No. 521,468, dated June 19, 1894:.

Application filed August '7, 1 8 9 3.

To all whom it may concern.-

Be it known that I, EBER HUBBARD, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have inyented certain new and useful Improvements in Machines for Turning Spools, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this machine is to dress the curved surfaces of the large sized spools which are used in putting up thread and like material for manufacturers use, as distinguished from the small spools for domestic use; and in its details it is particularly adapted to performing this process upon spools made of dried fibrous pulp, although it is applicable to Wood or other material; but many expedients which are practicable in working with natural wood are impracticable or undesirable in working with fibrous pulp or wood pulp, and the means selected for the various processes in this machine are those which I have found serviceable in working with pulp where many familiar means were unserviceable.

In the drawings,-Figure 1 is a side elevation of my machine, showing the spool carnor in position for dressing the spool. Fig. 2 is a plan of the same with'the spool carrier removed. Fig. 3 is a section at the line 3-3 on Fig. 1, looking in the direction of the arrow on the latter figure. Fig. 4 is a detail plan of a spool carrier and the spool in place in the carrier, the spool being cut axially at the end to show the bits which hold it. Fig.

5 is avertical section at the plane of the line 5-5 on Fig. 1. Fig. 6 isa section at the line 66 on Fig. 2. Fig. 7 is'a detail section at the line 7--7 on Fig. 4.

In general, the dressing of the curved surfaces of the spool in my machine is done by what I term wabbling saws,that is to say, saws arranged in gangs or groups on the same shaft slightly oblique to said shaft, so that the path of their cutting peripheries is broader than the thickness of the saws to the amount of their obliquity with respect to the shaft, whereby they are made to dress a larger surface than they would out if mounted at right angles on the shaft. Such gangs of saws are provided for each of the surfaces of the Serial No. 482,572. (No model.)

'spools,-.-to-wit, the shaft or cylindrical sur face at the middle. the conical surfaces of the flanges at the ends, and the narrow cylindrical surface which constitute the edges of the flanges. The spool is carried in a frame wherein it is grasped by a revolving bit, after the manner of a lathe head, and thus revolving,"is moved sidewise into the range of action of the saws, and to the point where that action dresses away the material to the requisite degree, and the spool carrier is then withdrawn and spool removed by the operator and another substituted.

In the drawings,-the framecomprises the horizontal bed A ,Which is supported by the vertical frame A at one end, which serves other purposes hereinafter set forth besides supporting the bed; and the vertical frame A toward the other end of the bed, but not at the extreme end, which also serves certain other purposes besides assisting in supporting the bed. The frame comprises also the horizontal bars A A, which are mounted bracketwise upon the upright frame A, and extend outwardly from said upright frame,- that is, in a direction opposite that in which the bed cxtends'from thesaid upright frame, and for further rigidity are supported at the ends by the posts A A The bed A comprises two parallel side-bars A A connected by cross-bars A A At the extreme end ofthe bed,that is, the end remote from the upright frame A the main driving shaftb is journaled, carrying a tight and a loose pulley, B and v B, by means of which power is communicated to rotate the spool, as hereinafter explained, and at the outer end of the horizontal bars A A, there is journaled the horizontal shaft 0, on which tight and loose pulleys C and C are provided to accommodate a belt through which power is communicated to said shaft 0, from which the several dressing mechanisms are operated.

The upright frame A is substantially a metal plate, or is made of metal and has a web which is continuous except as I to openings hereinafter described for the several mechanisms; and it constitutes a wall or partition on both sides of which brackets for supporting different mechanisms are mounted, the web or board being cut away at proper places to allow the operating peripheries of the saws to protrude through it and to allow belts to pass from driving pulleys on one side to driven pulleys on the other. The detail construction of the mechanism mounted on this upright frame or board A will now be described. Upon the side toward the shaft 0, there is mounted in journal boxes D D the horizontal shaft (1', which carries the gang of saws D and the pulley D which is driven by the belt d which passes over the driving pulley C on the shaft 0. The opening A in the web of the frame A permits a segment of the saws D to protrude through said web to the other side for the purpose of operating upon the shaft of the spool when it is advanced in proper position upon the carrier as described. Upon the same side of the frame A ,that is, toward the shaft c,there are mounted brackets E E, in which are journaled the shaft 0, which extends obliquely between said brackets, one of which is lower than the other, as shown in the drawings,the shaft being parallel with the web of the frame A, but at an inclination of about forty-five degrees from front to rear. A pulley E on this shaft receives power from the belt 6 driven by the pulley C on the shaft 0, and two pulleys E E on the shaft e, by means of the belts E E drive the gangs of obliquely situated saws F F, whose peripheries are located properly to dress the conical surfaces of the spool flanges, said gangs of saws being mounted respectively on the shafts ff, which are journaled in the brackets F F, respectively, which are secured upon the opposite side of the web of the frame A from that on which the brackets D D are mounted, said web being provided with the openings A A through which the belts E E extend to reach the pulleys f f on the shaft f, and thereby drive said oblique gangs of saws respectively. Upon the same side of the upright frame A on which the gangs of saws F F are located, there are located two other small groups of saws or single saws, as the case may require, P P, whose shafts p are journaled in brackets P P secured to the frame, said shafts being horizontal, and the peripheries of the saws being adapted to dress the narrow cylindrical periphery of the flange of the spools, and having on their shafts the pulleys, which are driven by the belts P 1, running to them from the pulleys C O on the shaft 0, apertures A A being provided in the web of the frame A to permit the belts to pass through.

It will be observed that the employment of the vertical frame A with the web described, amounting to a partition wall between the two portions of the machine, affords facility for securing all the mechanisms readily and in such manner that each may have quite a range of possible positions, as may be desirable for adapting the mechanism to spools of various sizes and proportions.

H is acarriage, which has journal bearings for the spool rotating spindle and center, and which is adapted to reciprocate back and forth on the bed A, the side-bars A A of the bed, and the side-bars H H of the carriage being adapted to each other for that purpose. To the side-bars ll 11 of the carriage there is secured the rack-bar 1-1 and in the side-bars A A" of the bed there is journaled the shaft 7t, having the pinion K, adapted to mesh with the rack ll, so that when the shaft is rocked by the crank-handle K, the carriage will be reciprocated back and forward according to the direction of rotation.

At H H are journal bearings for the shaft I which constitutes the spool-carrying spindle, terminating in a suitable sharply toothed flange or hit L adapted to engage the spool to rotate it. Between the two bearings 11 11" the shaft has the pulley L, which is in the same vertical plane with the pulley B on the end of the shaft 1). In the same plane, also, with both these pulleys, I provide two pulleys G G, whose shafts g g are journaled in the bed A, having one bearing in one of the side bars and another bearing at the inner ends of the brackets A A which are secured to the sides of the upright frame A and project inward and extend upward sufficiently for that purpose.

The upright frame A comprises the two side-bars A A and suitable cross-bars A and the inner faces of the uprights A are channeled to provide guide-bearings for sliding the frame or block A, in which is journaled a pulley G in the same vertical plane with the pulleys G G, and the pulleys B and L. The belt which passes over the pulley B returns over one pulley G, down under the pulley G, up over the other pulley G, thence on to the pulley L, and over the same to the pulley E the length of the belt being such that when the pulley G and its frame A are in their highest position in the upright frame A, the carriage H may be advanced far enough toward the upright frame A to bring the spool carried by the shaft Z of the pulley L fully into the range of action of all the dressing devices. The weight of the frame A and pulley G therein is sufficient to retract the carriage lI over the bed A, the pulley G descending between the side-bars of the frame A and taking up the belt, causing the carriage to retreat. It will be understood, however, that this action may be assisted,if necessary, by the rotation of the shaft 76.

B" is a belt-shifting lever which has an eye 13 for the belt, and is fulcrumed at b on the cross-bar A of the bed, and has the lever arm 13 extending nearly at right angles to the general trend of the main arm, and connected to the linkB, which extends for a distance in a direction parallel with the sides of the bed between the latter, and at the free end is pivoted to the lever M, which is fulcrumed on the bed and has two projections M and M which are in the path of a projection I1, formed or secured on the carriage H,

in such position that as the carriage retreats it passes over the projection M which then lies horizontal, and collides with the projection M, which is then upstanding, and rocks thelever M, and thereby, through the medium of the link 13, throws the belt-shifting lever B to shift the belt .off from' the tight pulley B onto the loose pulley B. The position of the parts is such that this occurs as soon as possible after the spool has, by the retreating movement of the carriage, been carried clear of all the dressing devices, so that the spool is at rest by the time the carriage has brought 1t into position where it can be seized and removed by the operator without danger of encountering the saws. In the advancing movement which will be communicated by rotation of the shaft is, the projection H engages the projection M of the lever M, which, at that position, stands in an inclined direction across the path of the projection H and rocking the lever M, shifts the belt on to the tight pulley, and holds it there during the remainder of the advancing moveme'nt, while the projection 1-1 moves along the projection M which then stands horizontally, as seen in Fig. 1.

An idle center spindle J is provided for the spool, mounted in the shaft J which slides in the bearings H and H on the carriage H. Said sliding shaft has a short rack J secured to it between its bearings. A lever arm J fulcrumed at 3' on the carriage, has a cogged segment J which engages the rack J and afiords means for sliding the shaft J in its bearings. The spindle J, rotatable in the cylindrical socket provided for it in the end of the shaft J, is retained against longitudinal movement by a pin j set through the shell protruding into the socket and engaging in the annular groove j in the spindle J.

N is a stripper, or device for stripping the spool off from the rotating spindle. It is provided with a dove-tailed sliding connection with one of the cross-bars H of the carriage H, lugs H being thrown up on said cross-bar between which said dove-tail bearing is provided, the arm N of the stripper being adapted to slide in such'bearing, as seen in Fig.4; and'the arm N being extended transversely to the spindle in such position that it may engage the end of the spool, will pull the latter off the spindle when the latter is caused to slide in its bearings on the carriage; and in order to give it this movement at proper time, I provide the arm J rigid with the shaft J and extended above the carriage cross-bar H and onto the arm N of the stripper, and provide the slot j, through which the headed bolts or screws n are inserted and screwed into the arm N. The length of the slot and the position of the'screws are such that when longitudinal movement is given to the shaft J by thelever arm J aftersuflicient movement to withdraw the idle spindle from the spool, the end of the slot reaches the nearest of the screws n, and the further longitudinal movement of the shaft causes the bar J 11 to draw with it the stripper N, which thereby withdraws the spool from the rotating spindle. The spool is Put in place by the reverse of these movements, both the rotating and the idle spindle being provided with a smooth center point 00, corresponding to the size of the axial aperture through the spool, whereby the spool maybe centered and thenforced into engagement by swinging the lever over to the position shown in Fig. 4.

I claim 7 1. In a machine for dressing spools, in combination with the frame (A suitably secured ''in an upright position; the oblique shafts f f carrying dressing devices j ournaled out of line with each other upon one side of the upright frame, and an oblique countershaft e journaled upon the opposite side of the frame; the pulleys on said shafts respectively, and the. belts from the counter-shaft to the shafts f f, traversing the frame: substantially as set forth.

2. In a machine for dressing spools, in combination with the upright frame A oblique shafts ff, journaled upon one side of the upright frame and carrying oblique dressing devices, and the horizontal shaft d journaled upon the opposite side of the upright frame carrying the dressing devices D, whose operating periphery extends through the upright. frame to the side at which the oblique devices are located; and the mechanism for driving said shafts and dressing devices'respectively;

and suitable mechanism for advancing the I spool toward the upright frame from the side at which the oblique dressing devices are located; substantially as set forth.

3. In a spool-dressing machine,in combination substantially as set forth, the driving mechanism for the dressing devices; the dressing devices themselves; the spool spindle carriage and the spindle-driving mechanism; said four elements being arranged on their supporting frame in the order named, whereby the dressing mechanism and the spool spindle carriage are the proximate elements and intermediate the two driving mechanisms, said driving mechanisms being independently driven; as and for the purpose set forth.

4. In a spool dressing machine, in combination with a horizontal bed and the spool carriage adapted to reciprocate thereon; theupright frame A located intermediate the ends of the bed and having vertical guide-ways;

a pulley-driving spindle journaled on the carriage and the pulley which drives it having its shaft journaled on the bed; means for reciprocating the carriage on the bed; the beltshlfting lever pivoted 011 the bed, and the cam lever M fulcrumed on the bed and connected to the belt-shifting lever, the carriage being adapted to engage said cam to tilt it as the carriage reciprocates to shift the belt: substantially as set forth.

6. In combination with the spool carriage, the spool carrying spindles j onrnaled thereon; a shaft in which the idle spindle is journaled adapted to be reciprocated lengthwise of the carriage; the stripper having guide-bearings 

